SGL Investment Advisors provides portfolio management for individuals and small businesses.
SGL Investment Advisors reports 883 clients. They include 766 individual clients, 92 high-net-worth individuals and 10 charitable organizations. Of its assets, 100.0% ($440M across 1,533 accounts) are managed with discretion. A wrap fee program the firm both sponsors and manages holds $440M. It advised 137 clients without assets under management last fiscal year.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | 87% | 41% |
| High-net-worth individuals | 10% | 47% |
| Charitable organizations | 1% | 6% |
| State or municipal government entities | <1% | <1% |
| Corporations and other businesses | 1% | 4% |
| Other client typesOther | <1% | <1% |
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | 766 | $181M | 41.2% | $237K |
| High-net-worth individuals | 92 | $207M | 47.1% | $2.25M |
| Charitable organizations | 10 | $28.5M | 6.5% | $2.85M |
| State or municipal government entities | Fewer than 5 | $3.86M | 0.9% | $3.86M |
| Corporations and other businesses | 10 | $19M | 4.3% | $1.9M |
| Other | 4 | $143K | 0.0% | $35.8K |
| Total | 883 | $440M | 100% | — |
- Clients
- 766
- Regulatory AUM
- $181M
- AUM share
- 41.2%
- Avg. per client
- $237K
- Clients
- 92
- Regulatory AUM
- $207M
- AUM share
- 47.1%
- Avg. per client
- $2.25M
- Clients
- 10
- Regulatory AUM
- $28.5M
- AUM share
- 6.5%
- Avg. per client
- $2.85M
- Clients
- Fewer than 5
- Regulatory AUM
- $3.86M
- AUM share
- 0.9%
- Avg. per client
- $3.86M
- Clients
- 10
- Regulatory AUM
- $19M
- AUM share
- 4.3%
- Avg. per client
- $1.9M
- Clients
- 4
- Regulatory AUM
- $143K
- AUM share
- 0.0%
- Avg. per client
- $35.8K
Total
- Clients
- 883
- Regulatory AUM
- $440M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 137
- Private funds advised
- 0
SGL Investment Advisors is paid through a percentage of assets under management. The reviewed brochures do not disclose an asset-based fee rate. Read the SEC-filed brochure.
SG Long Financial Services Corp. owns 75% or more of SGL Investment Advisors and is in turn owned by Scott Long (25–50%) and Susan Williams (25–50%). The leadership team of SGL Investment Advisors includes President Susan Williams and Chief Financial Officer Darla Felix. It has 7 employees, 6 of them in advisory roles.
Staff
- 7 employees
- 6 in advisory functions
- 5 state-registered reps
- 5 broker-dealer reps
- 1 insurance agent
- 8 soliciting firms
- Owns 75% or more of SGL Investment Advisors, Inc.
SG Long Financial Services Corp.
Control person · since February 2006
- Owns 25% to 50% of SG Long Financial Services Corp.
Scott Long
Control person · since February 2006
- Owns 25% to 50% of SG Long Financial Services Corp.
Susan Williams
Control person · since July 2017
Darla Felix
Secretary/treasurer · Control person · since August 2020
- Owns 10% to 25% of SGL Investment Advisors, Inc.
Robert Seidenschwarz
since November 2022
SGL Investment Advisors’ regulatory assets grew 2.6× from $169M (January 2021) to $440M (September 2026); clients rose from 279 to 883 and employees fell from 8 to 7.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | StaffEmployees | Offices |
|---|---|---|---|---|
| Sep 2026September 2026 | $440M | 883 | 7 | 1 |
| Sep 2024September 2024 | $351M | 574 | 8 | 1 |
| Jun 2024June 2024 | $292M | 471 | 9 | 1 |
| Mar 2023March 2023 | $212M | 407 | 9 | 1 |
| May 2022May 2022 | $219M | 324 | 8 | 1 |
| Jan 2021January 2021 | $169M | 279 | 8 | 1 |
Besides its headquarters, SGL Investment Advisors has 0 offices, with 1 listed address in 1 state.
Montana · 1 listed address
- 283 W. Front Street Suite 302, MissoulaHQ
Contact and registration details
- Legal name
- SGL Investment Advisors, Inc.
- Headquarters
- 283 W. Front Street Suite 302, Missoula, MT 59802-4328
- Website
- sglongfinancial.com
- Phone
- 406-721-0999
- @sgl-investment-advisors
- SEC file
- 801-80443
- Structure
- Montana corporation
- Fiscal year end
- June
SGL Investment Advisors’ named custodian for separately managed accounts is Charles Schwab ($292M). SGL Investment Advisors does not have custody of client assets.
- Charles SchwabCharles Schwab & Co., Inc. · San Francisco, CA · $292M100%
At year end, SGL Investment Advisors’ separately managed accounts were mostly in stocks (63%) and bonds (34%).
What the accounts hold
- Stocks63%
- Funds2%
- Registered funds1%
- Pooled vehicles1%
- Bonds34%
- Investment grade corporate bonds19%
- State and local bonds8%
- High-yield corporate bonds4%
- U.S. government and agency bonds3%
- Cash1%
How many clients does SGL Investment Advisors have?
SGL Investment Advisors has 883 clients and manages $440 million for them, as of September 2026. They include 766 individual clients, 92 high-net-worth individuals and 10 charitable organizations.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 25 September 2026
What services does SGL Investment Advisors offer?
SGL Investment Advisors provides portfolio management for individuals and small businesses.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
Which custodians does SGL Investment Advisors use?
SGL Investment Advisors’ separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $292M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 25 September 2026
How many financial advisors does SGL Investment Advisors have?
SGL Investment Advisors has 5 investment adviser representatives registered with state securities authorities, out of 7 employees, and 6 perform investment advisory functions. 5 employees are registered representatives of a broker-dealer and 1 employee is a licensed insurance agent.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does SGL Investment Advisors invest in?
At the end of its last fiscal year, SGL Investment Advisors’ separately managed accounts held 63% exchange-traded equities, 19% investment grade corporate bonds, 8% state and local bonds, 4% high-yield corporate bonds, 3% U.S. government and agency bonds, 1% registered funds (mutual funds, ETFs, BDCs), 1% pooled vehicles (private funds and similar) and 1% cash and equivalents.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns SGL Investment Advisors?
SGL Investment Advisors is owned through a holding company by Scott Long and Susan Williams. Its direct owners are SG Long Financial Services Corp. (75% or more) and Robert Seidenschwarz (10% to 25%).
Source: Form ADV Part 1A, Schedules A and B, filed 25 September 2026
How does SGL Investment Advisors get paid?
SGL Investment Advisors is paid through a percentage of assets under management. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact SGL Investment Advisors?
SGL Investment Advisors’ main office is at 283 W. Front Street Suite 302, Missoula, MT 59802-4328. Its phone number is 406-721-0999. Its website is sglongfinancial.com.
